1,721,839 research outputs found
Left-wing Terrorism as a National Security Threat
No full textYakovlev A. Y. Left-wing Terrorism as a National Security Threat [Электронный ресурс] / Yakovlev A. Y.// Проблемы регионального и муниципального управления : сб. докл. XIV междунар. науч. конф., Москва, апр. 2012 г. / М-во образования и науки Рос. Федерации, Рос. гос. гуманитарный ун-т. - М. : РГГУ, 2012. - С. 237-248
Left-wing Terrorism as a National Security Threat
No full textYakovlev A. Y. Left-wing Terrorism as a National Security Threat [Электронный ресурс] / Yakovlev A. Y.// Проблемы регионального и муниципального управления : сб. докл. XIV междунар. науч. конф., Москва, апр. 2012 г. / М-во образования и науки Рос. Федерации, Рос. гос. гуманитарный ун-т. - М. : РГГУ, 2012. - С. 237-248
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Network-on-chip multicast architectures using hybrid wire and surface-wave interconnects
No full textThe network-on-chip (NoC) has been introduced as an efficient communication backbone to tackle the increasing challenges of on-chip communication. Nevertheless, merely metalbased NoC implementation offers only limited performance and power scalability in terms of multicast and broadcast traffics. To meet scalability demands, this paper addresses the systemlevel challenges for intra-chip multicast communication in a proposed hybrid interconnects architecture. This hybrid NoC combines and utilizes both regular metal on-chip interconnects and new type of wireless-NoC (WiNoC) which is Zenneck surface wave interconnects (SWI). Moreover, this paper embeds novel multicast routing and arbitration schemes to address system-level multicast-challenges in the proposed architecture. Specifically, a design exploration of contention handling in SWI layer is considered in both centralized and decentralized manners. Consequently, the hybrid wire-SWI architecture avoids overloading the network, alleviates the formation of traffic hotspots and avoid deadlocks that are typically associated with state-of-theart multicast handling. The evaluation is based on a cycleaccurate simulation and hardware description. It demonstrates the effectiveness of the proposed architecture in terms of power consumption (up to around 10x) and performance (around 22x) compared to regular NoCs. These results are achieved with negligible hardware overheads. This study explore promising potential of the proposed architecture for current and future NoC-based many-core processors
Sub-wavelength resonances in mushroom-type surfaces in connection with leaky waves
No full textIn this paper, sub-wavelength reflection/transmission resonances are studied in a metamate-rial formed by paired arrays of metallic grids connected by vias. The analysis is based on the non-local homogenization model, which takes into account spatial dispersion effects and ad-ditional boundary conditions. It is observed that sub-wavelength resonances of complete transmission occur below and above the plasma frequency of the wire medium, which, in turn, are related to proper complex (backward) and improper complex (forward) leaky waves of the corresponding mushroom structure
Modal analysis of a metamaterial layer formed by arrayed pairs of planar conductors
No full textIn this paper, the dispersion analysis is proposed for the characterization of natural modes of a metamaterial
formed by pairs of metallic Jerusalem crosses separated by a thin dielectric layer. It is
shown that the modal spectrum includes bound (proper real) and leaky (proper and improper complex)
waves. An interesting observation is that at low frequencies a peculiar dominant TM improper
leaky wave occurs, which is shown to be related to peaks of complete transmission
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